Home / 102,189.06-141,008.31-56,854.98

Finding the Fourth Proportional to 102,189.06, 141,008.31 and 56,854.98

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Solution

The fourth proportional to 102,189.06, 141,008.31 and 56,854.98 is: 78,452.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,189.06 : 141,008.31 = 56,854.98 : x
  2. Step 2: Convert to fraction form
    102,189.06/141,008.31 = 56,854.98/x
  3. Step 3: Cross multiply
    102,189.06x = 141,008.31 × 56,854.98
  4. Step 4: Simplify right side
    102,189.06x = 8,017,024,644.88
  5. Step 5: Solve for x
    x = 8,017,024,644.88/102,189.06
  6. Step 6: Final answer
    x = 78,452.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.